Bug 392966: Indexing only source files in the build doesn't work properly with new scanner discovery

core/org.eclipse.cdt.core.tests/model/org/eclipse/cdt/core/language/settings/providers/LanguageSettingsManagerTests.java

@@ -17,6 +17,7 @@ import java.util.List;
 import junit.framework.TestSuite;
 
 import org.eclipse.cdt.core.AbstractExecutableExtensionBase;
+import org.eclipse.cdt.core.settings.model.CIncludeFileEntry;
 import org.eclipse.cdt.core.settings.model.CIncludePathEntry;
 import org.eclipse.cdt.core.settings.model.CMacroEntry;
 import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
@@ -649,6 +650,38 @@ public class LanguageSettingsManagerTests extends BaseTestCase {
 		assertEquals(3, includes.size());
 	}
 
+	/**
+	 * Test ability to get entries by kind.
+	 */
+	public void testEntriesByKind_CompositeKind() throws Exception {
+		MockConfigurationDescription cfgDescription = new MockConfigurationDescription(CFG_ID);
+
+		// contribute the entries
+		List<ICLanguageSettingEntry> entries = new ArrayList<ICLanguageSettingEntry>();
+		entries.add(new CIncludePathEntry("path0", 0));
+		entries.add(new CMacroEntry("MACRO0", "value0",0));
+		entries.add(new CIncludePathEntry("path1", 0));
+		entries.add(new CMacroEntry("MACRO1", "value1",0));
+		entries.add(new CIncludePathEntry("path2", 0));
+
+		entries.add(new CIncludeFileEntry("include-path-file", 0));
+
+		ILanguageSettingsProvider provider0 = new MockProvider(PROVIDER_0, PROVIDER_NAME_0, entries);
+		List<ILanguageSettingsProvider> providers = new ArrayList<ILanguageSettingsProvider>();
+		providers.add(provider0);
+		cfgDescription.setLanguageSettingProviders(providers);
+
+		// retrieve entries by kind
+		List<ICLanguageSettingEntry> result = LanguageSettingsProvidersSerializer
+			.getSettingEntriesByKind(cfgDescription, FILE_0, LANG_ID, ICSettingEntry.INCLUDE_PATH | ICSettingEntry.MACRO);
+		assertEquals(new CIncludePathEntry("path0", 0), result.get(0));
+		assertEquals(new CMacroEntry("MACRO0", "value0",0), result.get(1));
+		assertEquals(new CIncludePathEntry("path1", 0), result.get(2));
+		assertEquals(new CMacroEntry("MACRO1", "value1",0), result.get(3));
+		assertEquals(new CIncludePathEntry("path2", 0), result.get(4));
+		assertEquals(5, result.size());
+	}
+
 	/**
 	 * Test ability to serialize providers for a configuration.
 	 */

core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/model/CoreModel.java

@@ -13,10 +13,13 @@
 package org.eclipse.cdt.core.model;
 
 import java.net.URI;
+import java.util.List;
 
 import org.eclipse.cdt.core.CCProjectNature;
 import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.core.CProjectNature;
+import org.eclipse.cdt.core.language.settings.providers.ILanguageSettingsProvidersKeeper;
+import org.eclipse.cdt.core.language.settings.providers.LanguageSettingsManager;
 import org.eclipse.cdt.core.resources.IPathEntryStore;
 import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
 import org.eclipse.cdt.core.settings.model.ICLanguageSetting;
@@ -26,6 +29,7 @@ import org.eclipse.cdt.core.settings.model.ICProjectDescriptionListener;
 import org.eclipse.cdt.core.settings.model.ICProjectDescriptionManager;
 import org.eclipse.cdt.core.settings.model.ICSettingEntry;
 import org.eclipse.cdt.core.settings.model.WriteAccessException;
+import org.eclipse.cdt.internal.core.language.settings.providers.LanguageSettingsProvidersSerializer;
 import org.eclipse.cdt.internal.core.model.APathEntry;
 import org.eclipse.cdt.internal.core.model.BatchOperation;
 import org.eclipse.cdt.internal.core.model.CModel;
@@ -1253,6 +1257,19 @@ public class CoreModel {
 				if(!mngr.isNewStyleCfg(indexCfg)){
 					return oldIsScannerInformationEmpty(resource);
 				}
+				
+				if (indexCfg instanceof ILanguageSettingsProvidersKeeper) {
+					List<String> languageIds = LanguageSettingsManager.getLanguages(resource, indexCfg);
+					for (String langId : languageIds) {
+						List<ICLanguageSettingEntry> entries = LanguageSettingsProvidersSerializer.getSettingEntriesByKind(indexCfg, resource, langId,
+								ICSettingEntry.INCLUDE_PATH | ICSettingEntry.MACRO | ICSettingEntry.INCLUDE_FILE | ICSettingEntry.MACRO_FILE);
+						if (!(entries == null || entries.isEmpty())) {
+							return false;
+						}
+					}
+					return true;
+					
+				} else {
 					ICLanguageSetting lSetting = indexCfg.getLanguageSettingForFile(resource.getProjectRelativePath(), false);
 					if(lSetting != null && lSetting instanceof CLanguageSettingCache){
 						if(!((CLanguageSettingCache)lSetting).containsDiscoveredScannerInfo())
@@ -1277,6 +1294,7 @@ public class CoreModel {
 					}
 				}
 			}
+		}
 		return true;
 	}
 	

core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/settings/model/ICConfigurationDescription.java

@@ -369,12 +369,15 @@ public interface ICConfigurationDescription extends ICSettingContainer, ICSettin
 	boolean isPreferenceConfiguration();
 
 	/**
-	 * Convenience method to return a language setting for the file
+	 * @deprecated Deprecated as of CDT 8.1. This method returns settings supplied by MBS only.
-	 * with the specified project-relative path
+	 * For most cases, more generic Language Settings Providers mechanism should be used instead.
+	 *
+	 * Convenience method to return a language setting for the file with the specified project-relative path.
 	 * 
 	 * @param path - file project relative path
 	 * @return ICLanguageSetting or null if not found
 	 */
+	@Deprecated
 	ICLanguageSetting getLanguageSettingForFile(IPath path, boolean ignoreExludeStatus);
 
 	/**

core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/language/settings/providers/LanguageSettingsProvidersSerializer.java

@@ -1513,7 +1513,7 @@ public class LanguageSettingsProvidersSerializer {
 			for (ICLanguageSettingEntry entry : providerEntries) {
 				if (entry != null) {
 					String entryName = entry.getName();
-					boolean isRightKind = checkBit(entry.getKind(), kind);
+					boolean isRightKind = checkBit(kind, entry.getKind());
 					// Only first entry is considered
 					// Entry flagged as "UNDEFINED" prevents adding entry with the same name down the line
 					if (isRightKind && !alreadyAdded.contains(entryName)) {